eryn/kiibohd-controller
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Pre Tandy1000 overhaul

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This commit is contained in:
Jacob Alexander 2011-11-28 22:20:04 -08:00
parent 969b8c8bee
commit ac5f6c015d
17 changed files with 198 additions and 110 deletions
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30
Scan/matrix/scan_loop.c
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@ -44,17 +44,20 @@
// ----- Macros -----
// Loop over all of the sampled keys of the given array
// If the number of samples is higher than the sample threshold, flag the high bit, clear otherwise
// This should be resetting VERY quickly, cutting off a potentially valid keypress is not an issue
#define DEBOUNCE_ASSESS(table,size) \
for ( uint8_t key = 1; key < size + 1; key++ ) \
table[key] = ( table[key] & ~(1 << 7) ) > SAMPLE_THRESHOLD ? (1 << 7) : 0x00
// Make sure we haven't overflowed the buffer
#define bufferAdd(byte) \
if ( KeyIndex_BufferUsed < KEYBOARD_BUFFER ) \
KeyIndex_Buffer[KeyIndex_BufferUsed++] = byte
// ----- Variables -----
// Buffer used to inform the macro processing module which keys have been detected as pressed
volatile uint8_t KeyIndex_Buffer[KEYBOARD_BUFFER];
volatile uint8_t KeyIndex_BufferUsed;
// Keeps track of the number of scans, so we only do a debounce assess when it would be valid (as it throws away data)
uint8_t scan_count = 0;
@ -69,7 +72,7 @@ uint8_t KeyIndex_Array[KEYBOARD_SIZE + 1];
// Setup
inline void scan_setup()
{
matrix_pinSetup( (uint8_t*)matrix_pinout );
matrix_pinSetup( (uint8_t*)matrix_pinout, scanMode );
}
// Main Detection Loop
@ -95,7 +98,18 @@ inline uint8_t scan_loop()
scan_count = 0;
// Assess debouncing sample table
DEBOUNCE_ASSESS( KeyIndex_Array, KeyIndex_Size );
// Loop over all of the sampled keys of the given array
// If the number of samples is higher than the sample threshold, flag the high bit, clear otherwise
// This should be resetting VERY quickly, cutting off a potentially valid keypress is not an issue
for ( uint8_t key = 1; key < KeyIndex_Size + 1; key++ ) if ( ( KeyIndex_Array[key] & ~(1 << 7) ) > SAMPLE_THRESHOLD )
{
bufferAdd( key );
KeyIndex_Array[key] = (1 << 7);
}
else
{
KeyIndex_Array[key] = 0x00;
}
// Ready to allow for USB send
return 1;